最终的产品未能达到我们为自己设定的高标准。

The final product ___fell ___short ___of the high standards we had set for ourselves.

他仅以零点几秒之差，未能获得国家队的参赛资格。

He just ___fell ___short ___of qualifying for the national team by a fraction of a second.

尽管我们尽了最大努力，这次活动还是未能达到其筹款目标。

Despite our best efforts, the campaign ___fell ___short ___of its fundraising target.